From: Matthias Kruk <m@m10k.eu>
Date: Sat, 11 Jul 2020 08:46:17 +0000 (+0900)
Subject: parser: Implement parsing of expressions
X-Git-Url: https://git.corax.cc/?a=commitdiff_plain;h=05ea9b2afaa2db87954cfd41710afc2e57aac7a7;p=ccc

parser: Implement parsing of expressions
---

diff --git a/src/parser.c b/src/parser.c
index 9727d86..cfc67c9 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -550,8 +550,32 @@ struct string *parse_string(void)
 
 struct expression *parse_expression(void)
 {
-	/* TODO: Implement parsing of expressions */
-	fprintf(stderr, "FIXME: %s() is not implemented\n", __func__);
+	struct expression *expr;
+	int pos;
+
+	expr = expression_new();
+
+	if(!expr) {
+		return(NULL);
+	}
+
+	if((expr->aexpr = parse_assignment_expression())) {
+		return(expr);
+	}
+
+	pos = lex_getpos();
+
+	expr->expr = parse_expression();
+	expr->comma = lex_gettoken();
+	expr->aexpr = parse_assignment_expression();
+
+	if(expr->expr && expr->comma && expr->aexpr && expr->comma->type == TOKEN_COMMA) {
+		return(expr);
+	}
+
+	expression_free(expr);
+	lex_setpos(pos);
+
 	return(NULL);
 }